Blank tags get removed - wordpress version 3.9

[mukeshpal]

If we remove the text between the tags like <span>, <a>
then whole things get removed.

Steps to reproduce:

1. In tinymce editor, in text tab write something like <span id="test">test content</span>
2. Now in Visible tab remove the text 'test content'
3. It will remove whole things i.e. <span id="test">test content</span>

Expected result:
In Visible tab, On removing text 'test content' It should remove the text between the <span id="test"></span> tag

Actual result:
It removes whole tag and text i.e. <span id="test">test content</span>

[SergeyBiryukov]

Duplicate of #26986.

[mukeshpal]

I have opened the ticket on Tinymce. Please see their response here:

​http://www.tinymce.com/develop/bugtracker_view.php?id=6923

[SergeyBiryukov]

It's still a duplicate of #26986, see the discussion there.